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05-31-2009, 06:25 AM   #1
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Does K20D support Sigma HSM?

I am looking at the Sigma 50mm F/1.4 HSM lens but wonder if it works with K20D. Thanks....

05-31-2009, 06:29 AM   #2
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Certainly does Jensen


cheers
05-31-2009, 06:53 AM   #3
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Well I'm sure the lens does, the question is does the HSM? I seem to recall that some previous sigma lenses were offered in non-HSM, screw-drive versions for pentax. I could be wrong, though.
05-31-2009, 07:24 AM   #4
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QuoteOriginally posted by er1kksen Quote
Well I'm sure the lens does, the question is does the HSM? I seem to recall that some previous sigma lenses were offered in non-HSM, screw-drive versions for pentax. I could be wrong, though.
This is true with some of Sigma's older HSM lenses - screw drive only for Pentax. But some of their newer HSM lenses are HSM only for Pentax. My new 150-500mm HSM does not have a screw drive and works flawlessly with my K20D using Sigma's HSM. Also, I go straight to Sigma's Japan site for the clearest specs. The US site sometimes can be ambiguous in what lens feature is supported on what camera brand.

Edit: For the OP, here is the Sigma Japan link for the Sigma 50mm HSM. This link states that if the camera does not support HSM then AF is not supported so yes the K20D should AF fine with this lens.


Last edited by jem; 05-31-2009 at 09:44 AM. Reason: Added link
05-31-2009, 11:21 AM   #5
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QuoteQuote:
Does K20D support Sigma HSM?


Haven't you got that backwards?

05-31-2009, 12:23 PM   #6
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re: Does K20D support Sigma HSM?

QuoteOriginally posted by Jensen Quote
I am looking at the Sigma 50mm F/1.4 HSM lens but wonder if it works with K20D. Thanks....
If it is K-mount HSM lens then it usually does, unfortunately there are still very few of these to name 70-200mm f2.8 HSM, 50-500mm f4-6.3 HSM and few other telezooms from Sigma available. 50mm f1.4 HSM only works with camera bodies that support SDM (that what sigma website says).

Whether it's available or not? Can't say but PENTAX-DA 55mm f1.4 SDM sure is available in stock and even closer to portrait focal length + outstanding image quality. If you can afford it - chose Pentax instead of the sigma on this one.


my 2 here
05-31-2009, 03:31 PM   #7
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QuoteOriginally posted by Jensen Quote
I am looking at the Sigma 50mm F/1.4 HSM lens but wonder if it works with K20D. Thanks....
Had mine for a month. It works flawlessly on my K20D.
05-31-2009, 09:03 PM   #8
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Does K20D support Sigma HSM?

You guys have been a great help. Thanks.

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